In baseball there is an extray chalk line outside the 1st base line about 1/2 way down...why?

Answer 1

That's the 3-foot running lane that the batter-runner must run inside when the ball is being thrown to first. If the batter-runner runs inside the lane, he cannot be guilty of interference unless he deliberately interferes with a throw, such as by waving his arms to screen the first baseman or to bat the ball.

The lane begins 45 feet up the first-base lane and is 3 feet wide. It ends three feet beyond first base. The lane PROTECTS the batter-runner from being guilty of unintentional interference.

If the batter-runners runs outside of the lane (both feet must be inside the lane), he is not automatically out. To be called out for failing to run inside the lane, he must actually interfere with the throw or the first baseman's ability to catch the throw. The batter-runner is allowed to run outside of the lane in an attempt to avoid a fielder in the act of fielding a batted ball.

Answer 2

That line is there because its where the runners need to run if there is a throw from homeplate on a bunt or something else. If the runner is outside the line closest to the field and gets hit by the ball they are out. People run outside the line when they turn first base because they dont have to stay in between the lines on a ball not fielded by the catcher or pitcher close to the plate.

Answer 3

Baseball Field Chalk

Answer 4

The batter-runner has to stay within those lines (though it's a generous amount of "within" -- see rule below) or risk being called out for interference with the defense if the play involves a throw which the batter-runner, by going outside the lines, could obstruct (like a tiny bunt fielded by the catcher, thrown to first).

MLB Rule 6.05 (abridged):
A batter is out when --
(k) In running the last half of the distance from home base to first base, while the ball is being fielded to first base, he runs outside (to the right of) the three-foot line, or inside (to the left of) the foul line, and in the umpire’s judgment in so doing interferes with the fielder taking the throw at first base, in which case the ball is dead; except that he may run outside (to the right of) the threefoot line or inside (to the left of) the foul line to avoid a fielder attempting to field a batted ball;

Rule 6.05(k) Comment: The lines marking the three-foot lane are a part of that lane and a batter- runner is required to have both feet within the three-foot lane or on the lines marking the lane. The batter-runner is permitted to exit the three-foot lane by means of a step, stride, reach or slide in the immediate vicinity of first base for the sole purpose of touching first base.

Answer 5

That's the baseline, a runner is supposed to stay within that line or be called out for running out of the baseline.

Answer 6

It is kind of a guid to the hitter on how far out he can run if he is running arounding first base to head towards second base. although it doesn't usually happen, the umpire can call him out if he swings to far out of that line, out for running out of the base path.

Answer 7

the runner must be in between the two line or else hell be called out.